The apparatus consists of a central powerful lamp; round this is placed an arrangement of glass, so formed as to refract these beams into parallel rays in the required directions.
"A Yacht Voyage Round England"
W.H.G. Kingston
We can produce this phenomenon at pleasure, by employing any one of the many substances which are known to refract light in that peculiar manner.
"A System Of Logic, Ratiocinative And Inductive (Vol. 1 of 2)"
John Stuart Mill
Ions in the air act like drops of mist; they refract sunshine and make rainbows after rain.
"Operation Terror"
William Fitzgerald Jenkins